The beautiful Duet has very bright LEDs on the surface to indicate parameters. What is so special about the utilization of the Apogee Duet is the fact that it has only one knob, that you push to switch between the current parameters you are messing with. You switch between input gain 1, input gain 2, output from software, output from the hardware for monitoring, and the midi assignable function. What I find odd about the Duet is the situation with phantom power. I am not quite sure what drives it, but there does not seem to be any parameter assignable to it, and yet I know people who have used it for condensers. I for one have only used the Apogee Duet with dynamics, and I find that they give adequate gain for just about any dynamic out there.
It is as simple as plug and play. The manual is simple to use and everything about the Duet is elegant and simple.
I find the Duet to now be a steal when you consider that the Duet 2 is out on the market now, taking up the new sales segment. It is a fantastic deal, very elegant, and the quality is top notch.